Reversing-gear for engines



(No Model.)

T. MOORE.

REYBRSING GEAR FOR ENGINES.

Patented Sept. 16, 1884.

INVENTOR $77M BY (la/WW ATTORNEYS.

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Y UNlTiiD STATES PATENT OFFICE.

THOMAS MOORE, OF OFALLON, ILLINOIS.

REVERSlNG-GEAR FOR ENGINES.

SPECIFICATION forming part of Letters Patent No. 305,215, datedSeptember 16, 1884.

Application filed February 6, 1884.

To wZZ whom it may concern.-

Be itknown that I, THOMAS Modes, of OFallon, in the county of St. Clairand State ofIllinois, have invented anewand Improved ReversingGear forEngines, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved device forreversing the valves of engines with one eccentric disk, and to furnisha simple substitute for the usual link-motion.

The invention consists in the combination, with the shaft, of a spiralshaft journaled in disks on the shaft, and provided on one end with acrank engaging with an eccentric disk, and which spiral shaft passesthrough a sliding disk on the shaft, whereby by sliding the disk thespiral shaft is turned and its crank moves the eccentric disk andadjusts it as may be desired.

Reference is to be had to the accompanying drawings, forming part ofthis specifieation,in which similar letters of reference indicate conresponding parts in all the figures.

Figure 1 is a sectional plan view of an err gine provided with myimproved reversinggear. Fig. 2 is a longitudinal sectional elevation ofthe same on the line at .T, Fig. 1. Fig. 3 is a view of the shaft andreversinggear on an enlarged scale, parts being shown in section. Fig.at is a cross-sectional View of the shaft and a face view of theeccentric disk- On the shaft A is mounted a wheel or disk, B, having anannular groove, B, in its rim, into which groove a pin, a, passes, whichis formed on the end of an angular lever, O, pivoted 011 a standard onthe base of the engine. Two disks or arms, D and E, are rigidly mountedon the shaft A-one on each side of the wheel Bin which disks a spiralrod or shaft, F, or a screw is held to turn on its longitudinal axis,the said spiral shaft passing through a threaded aperture in the wheelor disk B, so that if the disk orwheel B is moved in the direction ofthe length of the shaft B the Spiral shaft will be turned on itslongitu- Adjoining the outer surface of the disk Ea disk, G, is heldloosely and eccentrically on the shaft A, which disk G is provided witha segmental slot, H, through which the shaft B passes. The disk G ispivoted opposite the middle of the slot H by a (No model.)

pivot, J, to the outer surface of the disk E, and opposite the pin tworidges, K, are formed on that surface of the disk G adjoining the outersurface of the disk E, between which ridges K a radial groove is formed;or the ra dial groove can be formed in any other suitable manner. Thedisk E is provided on its outer surface with a recess, E, in which acrank, L, is located, which is formed 011 the end of the spiral shaft F,and which crank has a pin, M, on its end, the said pin passing into thegroove formed between the ridges K. The rim of the disk G is surroundedby a band, N, connected with the valve-rod O.

The operation is as follows: If the disk B is moved in the direction ofthe length of the shaft A by means of the lever C, the spiral,

moved more or less, according to the distance the lever G is thrown, togive more or less eccentricity to the disk G.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, with the shaft A, of

the eccentric disk G, the disks D and E, the spiral shaft F, journaledin the same, and pr0- vided with a crank engaging with the eccentricdisk G, of the sliding disk B, through which the spiral shaft passes,and means for moving the disk B in the direction of the length of theshaft, substantially as herein shown and described. 2. The combination,with the shaft A, of the eccentric disk G, provided with a segmentalslot, H, the disks D E, the spiral shaft F,journaled 011 the same, thecrank L, formed on one end of the spiral shaft F, and engaging with theeccentric disk G, the disk B, through which the spiral shaft F passes,and of means for moving the disk B in the direction of the length of theshaft A, substantially as herein shown and described.

3. The combination, wit-h the shaft A, of the disks D and E, the spiralshaft F, j ournaled in the same, the eccentric disk G, provided with asegmental groove, II, and being pivoted t0 the disk E, the crank L,formed on the end of the spiral shaft F, and engaging with the eccentricdisk G, the sliding disk 13, through which the spiral shaft passes, andof means for moving the disk B in the direction of the length of theshaft A, substantially as herein shown and described.

4. The combination, with the shaft A, of the disk D, the disk Efhaving arecess, E, the eccentric disk G, pivoted to the disk E and havingasegmental slot, H, through which the shaft A passes, and also having agroove, the spiral shaft F, jonrnaled in the disks D and E, the slidingdisk B, through which the spiral shaft F passes, the crank L on the endof the spiral shaft F, and the pin M, passing from the end of the crankL into the groove in the disk G, substantially as herein shown anddescribed.

THOMAS MOORE.

Vitnesses:

ANTHONY SANSFEUR, XVILLIAM 13. XVILLIAMs.

